This document provides technical data on heat shrink terminations and joints for voltages ranging from 7.2kV to 33kV. It lists the test voltages that products are subjected to for various tests including humidity and salt fog, partial discharge, heating cycles, AC and DC voltage. It also outlines the 13-step test sequence and requirements according to EN 61442 that products must pass including short circuit, impulse, humidity and visual tests. Shrink Polymer Systems tests and qualifies their products to these Cenelec standards.

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Technical Data
Heat Shrink Terminations / Joints 7.2 to 33kV
Summary of Test Voltages
Test Test Voltage
Rated Voltage U01U (Um) kV
3.8/6.6 (7.2) 6.35/11 (12) 8.7/15 (17.5) 12.7/22 (24) 19/33 (36)
Humidity and salt fog 1.25 U0 5 8 11 16 24
Partial discharge
1.73 U0 6.5 11 15 22 33
2 U0 7.5 12.5 17.5 25 38
Heating cycle voltage and AC
voltage / 15 min and 500 hrs
2.5U0 9.5 16 23 32 47.5
AC voltage / 1 min 4U0 15 25.5 35 51 76
AC voltage / 5 min 4.5U0 17 28.5 39 57 85.5
DC voltage / 15 min 6U0 23 38 52 76 114
Impulse (peak) – 60 95 95 125 194
Test Sequence and Requirements
Test
Test Clause
of EN 61442
Test Sequence
Test Requirements
A1 A2 A3
1 DC voltage dry 5 X X 15 min at 6U0 no breakdown or flashover
2 AC voltage dry 4 X X 5 min at 4.5 U0 no breakdown or flashover
3 Partial discharge at ambient temperature 7 X Max 10pC at 1.73U0
(4)
4 Impulse voltage at elevated temperature 6 X 10 impulses of each polarity, no breakdown or flashover
5 Heating cycle voltage in air 9 X
126 cycles at 2.5U0 no breakdown or flashover for
terminations and 63 cycles in air and 63 cycles in water
for Joints
6
Partial discharge at elevated and ambient
temperature
7 X Max 10pC at 1.73Uo
(4)
7 Thermal short circuit (screen) 10 X 2 short circuits at 1sc no breakdown
8 Thermal short circuit (conductor) 11 X
2 short circuits to raise conductor to 6sc of the cable, no
breakdown
9 Dynamic short circuit 12 X 1 short circuit at 1d
(3)
no breakdown
10 Impulse voltage at ambient temperature 6 X X 10 impulses of each polarity, no breakdown or flashover
11 AC voltage dry 4 X X 15 min at 2.5U0 no breakdown or flashover
12 Humidity(2)
13 X 300 hrs duration at 1.25U0
(5)
13 Examination - X X X For information only
Shrink Polymer Systems test and qualify our products to the criteria above as outlined in Cenelec standards
HD 628 S1 and 629.1 S2:2006. This testing criteria also encompasses VDE 0278 and IEC 60502